Reed Valve Block POLINI

for MINARELLI

The reed valve block produces the connection between manifold and motor block. This is where induction is regulated. It goes like this: the piston moves up, which creates a vacuum in the crankcase. This in turn, causes the reeds to open and the fuel mix fl ows in through the reed valve block. As soon as the pistons move down, the mix is compressed. Now, the reeds close again, which in turn keeps the fuel from fl owing back out. Due to it‘s optimal fl ow, a racing reed valve block belongs to the absolute basics of motor tuning.